The azygos vein arises as a continuation of the right ascending lumbar vein at the level of the first lumbar intervertebral space. It pierces the diaphragm to the right of the aorta and continues ...
COSTAL intraosseous venography (azygography) is the only technic currently available that permits roentgenologic visualization of the thoracic venous drainage. This procedure, though well defined, 1 ...
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